Export Control
EAR Export Classification: Not subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3), except for the following Service Bulletins which are currently published as EAR Export Classification 9E991: SBE70-0992, SBE72-0483, SBE72-0580, SBE72-0588, SBE72-0640, SBE73-0209, SBE80-0024 and SBE80-0025.Copyright
© IAE International Aero Engines AG (2001, 2014 - 2021) The information contained in this document is the property of © IAE International Aero Engines AG and may not be copied or used for any purpose other than that for which it is supplied without the express written authority of © IAE International Aero Engines AG. (This does not preclude use by engine and aircraft operators for normal instructional, maintenance or overhaul purposes.).Applicability
All
Common Information
TASK 72-41-13-300-030 HPC Rear Shaft - Repair The No. 4 Bearing Seal Seat By Nickel Plate, Repair-030 (VRS3636)
General
Price and availability - refer to IAE
The practices and processes referred to in this procedure by TASK numbers are in the SPM.
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Machining equipment | LOCAL | Machining equipment | ||
| Plating equipment | LOCAL | Plating equipment | ||
| Workshop inspection equipment | LOCAL | Workshop inspection equipment |
Consumables, Materials and Expendables
NONESpares
NONESafety Requirements
NONEProcedure
Refer to the SPM TASK 70-33-06-300-503 or
Remove the nickel plate.
Keep the machining to the maximum dimension. Refer to Figure.
If a grind operation is used to get the before plating dimension, do the fluorescent penetrant inspection.
Machine or grind the HPC rear hub No. 4 bearing seal seat shoulder.
SUBTASK 72-41-13-320-064 Remove the Damage and all of the Nickel Plate from the HPC Rear Hub No. 4 Bearing Seal Seat Shoulder
Do the penetrant procedure given in the SPM TASK 70-23-04-230-501. No cracks permitted. Do this procedure before you plate the part.
Examine the machined No. 4 Bearing front seal mating diameter for cracks.
SUBTASK 72-41-13-230-103 Examine the Machined No. 4 Bearing Seal Seat Shoulder for Cracks
Do the procedure given in the SPM TASK 70-33-06-300-503. Plate to a minimum plate dimension. Refer to Figure.
NOTE
Nickel plate must not overlap chromium plated area.Nickel plate the machined shoulder area.
SUBTASK 72-41-13-380-062 Nickel Plate the Machined Shoulder Area
Machine to the finished dimensions in the figure. Refer to Figure.
Machine plated shoulder area.
SUBTASK 72-41-13-320-065 Machine Plated Shoulder Area
Figure: No. 4 Bearing Seal Seat HPC Rear Drive Shaft - Nickel Plate Repair
No. 4 Bearing Seal Seat HPC Rear Drive Shaft - Nickel Plate Repair
